Scientific and colonial discourses of racial mixture first converged on the issue of interracial marriage in the colonies. Scientific conceptions of the negative genetic consequences of racial mixture were already an element of nineteenth-century German colonial policies as articulated on the issue of Rassenmischehe, or racially mixed marriages between white colonial settlers and indigenous colonial peoples. Only six years before the Rhineland occupation, Reichstag debates on racially mixed marriages prefigured many of the same arguments and fears voiced later in the newspaper protest campaign. Although interracial marriage was not illegal under German imperial law, colonial officials began refusing to register interracial unions in the colonies in 1890. In 1905 Governor Friednch von Lindequist issued the first such measure in the form of a decree banning interracial marriages in German Southwest Africa. Reflecting the dominant views of the scientific community at the time, he cited what he saw as the dangerous effect of racial mixture on the purity of the white race: "Such unions do not preserve, but rather diminish the race. As a rule the offspring are physically and emotionally weak and unite in themselves the negative traits of both parents." In 1907, the colonial High Court in Windhuk ruled that the marriage bans were retroactively valid, effectively nullifying mixed marriages concluded before the 1905 ban. The court's ruling stated, "Any person whose ancestry can be traced to natives either paternally or maternally must be viewed and treated as a native." Consequently, many people who had been considered white Germans and who had considered themselves white Germans suddenly were counted as natives. Following Lindequist's administrative order, similar decrees were passed banning mixed marriages in the German colonies of East Africa in 1906 and Samoa in 1912. In response to this 1912 decree, protests broke out in the Reichstag, prompting delegates to debate the legality of these colonial decrees in light of their conflict with imperial law. But the objections raised in protest against the bans did not focus in any fundamental way on juridical arguments regarding the question of the precedence of imperial over colonial legislation. Rather, delegates raised explicitly moral arguments against the bans, which presented marriages between German colonialists and nonwhite colonial natives as a threat to sexual morality and existing racial hierarchies of difference.

Grace Lee Boggs, one of the nationâ€™s oldest human rights activists, who waged a war of inspiration for civil rights, labor, feminism, the environment and other causes for seven decades with an unflagging faith that revolutionary justice was just around the corner, died on Monday at her home in Detroit. She was 100.

Her death was confirmed by Alice Jennings, her friend and legal trustee.

Born to Chinese immigrants, Ms. Boggs was an author and philosopher who planted gardens on vacant lots, founded community organizations and political movements, marched against racism, lectured widely on human rights and wrote books on her evolving vision of a revolution in America.

Her odyssey took her from the streets of Chicago as a tenant organizer in the 1940s to arcane academic debates about the nature of communism, from the confrontational tactics of Malcolm X and the Black Power movement to the nonviolent strategies of the Rev. Dr. Martin Luther King Jr., and finally to her own manifesto for change â€” based not on political and economic upheavals but on community organizing and resurgent moral values…

…In 1953, she moved to Detroit and married James Boggs, a black autoworker, writer and radical activist. The city, with its large black population, racial inequalities and auto industry in its postwar heyday, seemed poised for changes, and the couple focused on African-Americans, women and young people as vanguards of a social movement…